Fujitsu PRIMERGY RX4770 M5 Upgrade And Maintenance Manual page 383

Liquid cooling (LC)
Figure 219: Removing the LC device
▶ Carefully lift up the three memory cooling units (see arrows).
▶ Hold the LC device with both hands and lift up the complete LC device
together with the CPUs.
Removing the CPU
Figure 220: Removing the CPU from the pump
RX4770 M5 Upgrade and Maintenance Manual 383